Cita APA (7th ed.)

Panagrosso, D., & Williams, O. (1999). Test prep MCSD Visual Basic 6 exams. New Riders.

Cita Chicago (17th ed.)

Panagrosso, David, i Owen Williams. Test Prep MCSD Visual Basic 6 Exams. Indianapolis, Ind.: New Riders, 1999.

Cita MLA (8th ed.)

Panagrosso, David, i Owen Williams. Test Prep MCSD Visual Basic 6 Exams. New Riders, 1999.